Problem logging out

Nobody has claimed this yet.

Hello:

Perhaps I'm not understanding things correctly, but I'm not certain that logout is working the way that I think it does.
I have no problem logging in (I'm testing things using GitHub), and I understand that goth's cookie only exists long enough to handle the authentication through GitHub, but when I log a user out like this:

`gothic.Logout(w, r)`

The user does not actually appear to be logged out of GitHub. The token still exists on GitHub as an authenticated user, and if I click on my login button again, which calls this hander:
~~~
func (s *SocialLogin) GithubLogin(w http.ResponseWriter, r *http.Request) {
s.InitSocialAuth(r)
if _, err := gothic.CompleteUserAuth(w, r); err == nil {
http.Redirect(w, r, "/", http.StatusSeeOther)
} else {
gothic.BeginAuthHandler(w, r)
}
}
~~~
the user is instantly logged in, without having to enter GitHub credentials.
I assume that I need to save something that is returned by the call to `gothic.CompleteUserAuth`, but I'm not sure what...
How, exactly, do I instruct GitHub to log the user out properly?

Start with the reported flow through gothic.Logout, CompleteUserAuth, BeginAuthHandler, and the GithubLogin handler. Determine the expected relationship between local logout and the authenticated GitHub session, then verify the behavior when the login flow is started again and document or resolve the observed result.

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